title: Three-dimensional reconstruction of intravascular ultrasound images of coronary stents using an ECG-gated pull-back device.
abstract: Three-dimensional reconstruction (3D-R) of intravascular ultrasound (IVUS) images is not yet satisfactory because of artifacts caused by cardiac movement. This problem can be overcome with a new device, an electrocardiographic (ECG)-gated pull-back system. Using this device a catheter is pulled back stepwise gated by the ECG, and IVUS dynamic images of an entire cardiac cycle are acquired at each step. We performed 3D-R of IVUS images of stents using this new device in six patients with Palmaz-Schatz coronary stent implantation. We obtained precise 3D images in all cases, and stent structure was visualized in detail. In conclusion, use of an ECG-gated pull-back device enables precise 3D-R of IVUS images and provides useful information on the coronary artery.
authors.affiliation: Department of Cardiology, Miki City Hospital, Hyogo, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Terashima
authors.forename: M
authors.initials: M
authors.lastname: Hayakawa
authors.forename: K
authors.initials: K
authors.lastname: Awano
authors.forename: J
authors.initials: J
authors.lastname: Masuda
authors.forename: T
authors.initials: T
authors.lastname: Mori
authors.forename: R
authors.initials: R
authors.lastname: Emoto
authors.forename: K
authors.initials: K
authors.lastname: Hattori
authors.forename: T
authors.initials: T
authors.lastname: Inatome
authors.forename: K
authors.initials: K
authors.lastname: Maeda
mesh_terms: D000368:Aged; D003331:Coronary Vessels / Q000000981:diagnostic imaging*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008297:Male; D008875:Middle Aged; D015607:Stents; D018084:Ultrasonography, Interventional / Q000295:instrumentation*